<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<h3>新年好</h3>
<form action="/restful" method="post">
    <input type="submit" value="post请求">
</form>

<form action="/restful" method="post">
    <input name="_method" value="DELETE" type="hidden">
    <input type="submit" value="delete请求">
</form>

<form action="/restful" method="post">
    <input name="_method" value="put" type="hidden">
    <input type="submit" value="put请求">
</form>

<hr>
<form action="/parameter5" method="post">
    <input type="text" name="username">
    <input type="text" name="age">
    <input type="submit" value="提交">
</form>
</body>
</html>